# Command: FALLBACK-ADDRESS

Format FALLBACK-ADDRESS o1.o2.o3.o4

Example: `FALLBACK-ADDRESS 192.168.2.9`

Sets the fallback IP address of the device to 'o1.o2.o3.o4'. The fallback address is used if the device is set to ask for a DHCP address and none is provided (usually bacause there is no DHCP server on the network).

{% hint style="warning" %}
Do  not use an IP address starting with first octet '127' or '255'
{% endhint %}


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# Agent Instructions: Querying This Documentation

If you need additional information that is not directly available in this page, you can query the documentation dynamically by asking a question.

Perform an HTTP GET request on the current page URL with the `ask` query parameter:

```
GET https://docs.ceruleansonar.com/c/ethernet-rov-locator/communicating-with-the-rovl/messages-from-host-to-rovl/valid-commands-from-host-to-rovl-ethernet-only/command-fallback-address.md?ask=<question>
```

The question should be specific, self-contained, and written in natural language.
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Use this mechanism when the answer is not explicitly present in the current page, you need clarification or additional context, or you want to retrieve related documentation sections.
